Patents by Inventor Kunihiro Takahashi

Kunihiro Takahashi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240117228
    Abstract: A welding film includes a phenoxy resin, in which a z average molecular weight of the phenoxy resin is 70,000 or more, and a ratio [Mz/Mn] between the z average molecular weight and a number average molecular weight of the phenoxy resin is 5.0 or more.
    Type: Application
    Filed: February 4, 2022
    Publication date: April 11, 2024
    Applicant: Resonac Corporation
    Inventors: Ryota NIIBAYASHI, Nobuyuki TAKAHASHI, Hayato SAITO, Kunihiro KUROKI
  • Publication number: 20240067539
    Abstract: The present invention is a method for operating a demineralization apparatus provided with a plurality of demineralizing lines arranged in parallel and having demineralizers, the method comprising passing through some of the demineralizing lines water to be treated to produce demineralized water while passing through another demineralizing line(s) dilute water from a dilute water tank to perform washing of the line(s), and returning water used for said washing back to the dilute water tank, and being characterized by, when the water quality of the dilute water is on the high salts concentration side past a predefined value, discharging part of the dilute water so as to let said part join the water to be treated and providing a new supply of dilute water for replenishment.
    Type: Application
    Filed: September 2, 2021
    Publication date: February 29, 2024
    Applicant: KURITA WATER INDUSTRIES LTD.
    Inventors: Kazuki ISHII, Kunihiro HAYAKAWA, Junichi TAKAHASHI
  • Patent number: 10746290
    Abstract: A lockup control device for a vehicle includes: a torque converter, and a lockup control configured to increase a lockup pressure difference command to an initial pressure difference, when a turbine rotation speed variation amount of the torque converter becomes smaller than a predetermined value during a ramp control in which the lockup pressure difference command is increased by a ramp pressure difference, the lockup control section being configured to switch to a second increase gradient having an increase gradient lower than a first increase gradient of the ramp pressure difference when the turbine rotation speed variation amount is equal to or greater than the predetermined value.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: August 18, 2020
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventors: Takahiro Yamada, Kunihiro Takahashi, Syunsuke Iwamoto, Yuji Okamoto, Toshiaki Noda
  • Patent number: 10619731
    Abstract: A lockup control device for a vehicle includes: a torque converter; a lockup control section configured to increase a lockup pressure difference command to an initial pressure difference when a lockup engagement condition is satisfied in a disengagement state of the lockup clutch, and then to increase the lockup pressure difference command by a ramp pressure difference by a predetermined gradient, the lockup control section being configured to determine a ramp start condition by which the lockup pressure difference command is switched from the initial pressure difference to the ramp pressure difference, based on a speed ratio which is a ratio of input and output rotation speeds of the torque converter.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: April 14, 2020
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventors: Takahiro Yamada, Kunihiro Takahashi, Syunsuke Iwamoto, Yuji Okamoto, Toshiaki Noda
  • Patent number: 10228055
    Abstract: A transmission controller increases hydraulic pressure supplied to a secondary pulley and decreases hydraulic pressure supplied to a primary pulley to shift a variator to a mechanical Low speed ratio when the hydraulic pressure supplied to the primary pulley and the secondary pulley vibrates. The transmission controller shifts the variator from the mechanical Low speed ratio to a High side when a sub-transmission mechanism is downshifted during controlling a speed ratio of the variator at the mechanical Low speed ratio.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: March 12, 2019
    Assignee: JATCO LTD
    Inventors: Masashi Suwabe, Tetsuya Izumi, Masayuki Miyazono, Takuichiro Inoue, Kunihiro Takahashi, Makoto Komatsu, Yuji Okamoto
  • Publication number: 20190040950
    Abstract: A lockup control device for a vehicle includes: a torque converter; a lockup control section configured to increase a lockup pressure difference command to an initial pressure difference when a lockup engagement condition is satisfied in a disengagement state of the lockup clutch, and then to increase the lockup pressure difference command by a ramp pressure difference by a predetermined gradient, the lockup control section being configured to determine a ramp start condition by which the lockup pressure difference command is switched from the initial pressure difference to the ramp pressure difference, based on a speed ratio which is a ratio of input and output rotation speeds of the torque converter.
    Type: Application
    Filed: January 31, 2017
    Publication date: February 7, 2019
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Takahiro YAMADA, Kunihiro TAKAHASHI, Syunsuke IWAMOTO, Yuji OKAMOTO, Toshiaki NODA
  • Publication number: 20190032778
    Abstract: A lockup control device for a vehicle includes: a torque converter, and a lockup control configured to increase a lockup pressure difference command to an initial pressure difference, when a turbine rotation speed variation amount of the torque converter becomes smaller than a predetermined value during a ramp control in which the lockup pressure difference command is increased by a ramp pressure difference, the lockup control section being configured to switch to a second increase gradient having an increase gradient lower than a first increase gradient of the ramp pressure difference when the turbine rotation speed variation amount is equal to or greater than the predetermined value.
    Type: Application
    Filed: January 31, 2017
    Publication date: January 31, 2019
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Takahiro YAMADA, Kunihiro TAKAHASHI, Syunsuke IWAMOTO, Yuji OKAMOTO, Toshiaki NODA
  • Patent number: 9964207
    Abstract: A transmission controller increases hydraulic pressure supplied to a secondary pulley and decreases hydraulic pressure supplied to a primary pulley to shift a variator to a mechanical Low speed ratio during the hydraulic pressure supplied to the primary pulley and the secondary pulley vibrates. The mechanical Low speed ratio is a speed ratio where a groove width of the primary pulley has a maximum value possible to be employed in structure of the primary pulley.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: May 8, 2018
    Assignees: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Kunihiro Takahashi, Tetsuya Izumi, Masayuki Miyazono, Takuichiro Inoue, Masashi Suwabe, Makoto Komatsu, Yuji Okamoto
  • Patent number: 9815469
    Abstract: A vehicle control device calculates a target line pressure based on an instructed torque capacity of a friction engaging element and a belt capacity when the friction engaging element is determined as not engaging. Belt capacity is calculated using an input torque of a continuously variable transmission mechanism. The device calculates torque down in a driving source based on an upper limit line pressure when the calculated target line pressure exceeds such line pressure. A limit torque capacity of the friction engaging element is calculated using the input torque and a belt capacity when the friction engaging element is determined as not engaging. The belt capacity is calculated using an actual line pressure. The device restrains a slip between pulleys and a power transmitting member using the target line pressure, the torque down, and the limit torque capacity when the friction engaging element is determined as not engaging.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: November 14, 2017
    Assignee: JATCO Ltd
    Inventors: Kunihiro Takahashi, Yoshinobu Kawamoto, Hideshi Wakayama
  • Publication number: 20170211697
    Abstract: A transmission controller increases hydraulic pressure supplied to a secondary pulley and decreases hydraulic pressure supplied to a primary pulley to shift a variator to a mechanical Low speed ratio when the hydraulic pressure supplied to the primary pulley and the secondary pulley vibrates. The transmission controller shifts the variator from the mechanical Low speed ratio to a High side when a sub-transmission mechanism is downshifted during controlling a speed ratio of the variator at the mechanical Low speed ratio.
    Type: Application
    Filed: June 3, 2015
    Publication date: July 27, 2017
    Applicant: JATCO Ltd
    Inventors: Masashi SUWABE, Tetsuya IZUMI, Masayuki MIYAZONO, Takuichiro INOUE, Kunihiro TAKAHASHI, Makoto KOMATSU, Yuji OKAMOTO
  • Publication number: 20170211691
    Abstract: A transmission controller increases hydraulic pressure supplied to a secondary pulley and decreases hydraulic pressure supplied to a primary pulley to shift a variator to a mechanical Low speed ratio during the hydraulic pressure supplied to the primary pulley and the secondary pulley vibrates. The mechanical Low speed ratio is a speed ratio where a groove width of the primary pulley has a maximum value possible to be employed in structure of the primary pulley.
    Type: Application
    Filed: June 3, 2015
    Publication date: July 27, 2017
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Kunihiro TAKAHASHI, Tetsuya IZUMI, Masayuki MIYAZONO, Takuichiro INOUE, Masashi SUWABE, Makoto KOMATSU, Yuji OKAMOTO
  • Patent number: 9612141
    Abstract: The present invention relates to flow measurement, and more particularly, to a system for measuring a flow rate by three-dimensionally crossing a plurality of sidings each other within a conduit. An ultrasonic flow measurement system according to the present invention determines a flow central part of fluid by three-dimensionally crossing the plurality of sidings each other within the conduit in three dimensions and calculates a flow rate flowing in the conduit, meeting the flow central part, thereby more accurately measuring the flow rate than the existing method.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: April 4, 2017
    Assignees: Woojin Inc., Sonic Corporation
    Inventors: Kye Hyeon Ryu, Hee June Park, Hyun Myoung Shin, Toru Akiyama, Kunihiro Takahashi, Noriaki Saito, Kazuo Takemura
  • Publication number: 20170008524
    Abstract: A vehicle control device calculates a target line pressure based on an instructed torque capacity of a friction engaging element and a belt capacity when the friction engaging element is determined as not engaging. Belt capacity is calculated using an input torque of a continuously variable transmission mechanism. The device calculates torque down in a driving source based on an upper limit line pressure when the calculated target line pressure exceeds such line pressure. A limit torque capacity of the friction engaging element is calculated using the input torque and a belt capacity when the friction engaging element is determined as not engaging. The belt capacity is calculated using an actual line pressure. The device restrains a slip between pulleys and a power transmitting member using the target line pressure, the torque down, and the limit torque capacity when the friction engaging element is determined as not engaging.
    Type: Application
    Filed: February 25, 2015
    Publication date: January 12, 2017
    Applicant: JATCO Ltd
    Inventors: Kunihiro TAKAHASHI, Yoshinobu KAWAMOTO, Hideshi WAKAYAMA
  • Publication number: 20160033312
    Abstract: The present invention relates to flow measurement, and more particularly, to a system for measuring a flow rate by three-dimensionally crossing a plurality of sidings each other within a conduit. An ultrasonic flow measurement system according to the present invention determines a flow central part of fluid by three-dimensionally crossing the plurality of sidings each other within the conduit in three dimensions and calculates a flow rate flowing in the conduit, meeting the flow central part, thereby more accurately measuring the flow rate than the existing method.
    Type: Application
    Filed: April 14, 2014
    Publication date: February 4, 2016
    Inventors: Kye Hyeon RYU, Hee June PARK, Hyun Myoung SHIN, Toru AKIYAMA, Kunihiro TAKAHASHI, Noriaki SAITO, Kazuo TAKEMURA
  • Patent number: 9031751
    Abstract: In a control apparatus for an automatic transmission, a gear shift from a second gear shift stage to a first gear shift stage is inhibited and the gear shift from the first gear shift stage to the second gear shift stage is continued, when, during the gear shift from the first gear shift stage to the second gear shift stage, a request of the gear shift from the second gear shift stage to the first gear shift stage by means of an automatic transmission section has occurred during a time duration from a time at which a gear shift command from the first gear shift stage to the second gear shift stage is issued to a time at which an inertia phase is started.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: May 12, 2015
    Assignees: JATCO Ltd, Nissan Motor Co., Ltd.
    Inventors: Go Endo, Kunihiro Takahashi
  • Publication number: 20140330494
    Abstract: In a control apparatus for an automatic transmission, a gear shift from a second gear shift stage to a first gear shift stage is inhibited and the gear shift from the first gear shift stage to the second gear shift stage is continued, when, during the gear shift from the first gear shift stage to the second gear shift stage, a request of the gear shift from the second gear shift stage to the first gear shift stage by means of an automatic transmission section has occurred during a time duration from a time at which a gear shift command from the first gear shift stage to the second gear shift stage is issued to a time at which an inertia phase is started.
    Type: Application
    Filed: October 23, 2012
    Publication date: November 6, 2014
    Inventors: Go Endo, Kunihiro Takahashi
  • Patent number: 8628839
    Abstract: A recording medium comprising a magnetic material inside, and having a Taber abrasion amount of 10 mg or less. Also provided is a recording medium comprising a magnetic material inside, and having, in an environment of 23° C. and 50% RH, a surface electroresistivity of 1×109 ?/sq to 2×1011 ?/sq and a volume electroresistivity of 1×1010 ?cm to 2×1012 ?cm.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: January 14, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tsukasa Matsuda, Eizo Kurihara, Shoji Yamaguchi, Kunihiro Takahashi, Mario Fuse, Yasunori Koda, Ryuichi Kisaka, Tomotsugu Takahashi
  • Patent number: 8441664
    Abstract: A detection system includes: an acquiring unit that acquires document data representative of a document which includes a plurality of pages; a selector that selects, for each page of the document, a first printing sheet which contains a detected element or a second printing sheet which does not contain the detected element such that the first printing sheet is selected for at least one page; a supplier that supplies the first or the second printing sheet selected by the selector; a printer that sequentially prints the document acquired by the acquiring unit on the printing sheets supplied by the supplier; a detector that detects a detected element contained in a printing sheet on which the document is printed by the printer; and a reporter that reports detection of the detected element in a printing sheet by the detector.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: May 14, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Mario Fuse, Shoji Yamaguchi, Yasunori Koda, Shinji Tabata, Kunihiro Takahashi
  • Patent number: 8352219
    Abstract: The object is to enable the calculation of load transfer paths in case of distributed load applied to the structure with the numerical structure-analysis calculation system. The value of the parameter U** at each point is calculated according to the ratio of the complementary strain energy U at the application of load without fixing the point in the structure and the complementary strain energy U? at the application of load with fixing one point in the structure. In the actual calculation, according to the complementary strain energy U, and the flexibility matrix CAC with respect to the loading point A and one point C in the structure, and the inverse matrix CCC?1 of the flexibility matrix with respect to point C, and the load pA at the loading point A, the value of the parameter U** (CACCCC?1CCApA·pA/(2U)) at point C is calculated.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: January 8, 2013
    Assignee: Keio University
    Inventors: Kunihiro Takahashi, Toshiaki Sakurai, Tatsuya Nakada, Kengo Inoue
  • Patent number: 8308196
    Abstract: A label sheet, includes: a label base material; a release liner; an adhesive layer which is formed between the label base material and the release liner; and wires that are disposed between the label base material and the release liner so as to be respectively placed on lines coupling at least one of two pairs of opposed sides of the label base material in a manner that both ends of each of the wires respectively locate at positions away from the corresponding sides coupled by each of the lines by 0.2 mm or more.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: November 13, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Dmitry Ivutin, Tsukasa Matsuda, Eizo Kurihara, Mario Fuse, Kunihiro Takahashi, Shoji Yamaguchi